WO2012016394A1 - Engrais à base de silicium-calcium-magnésium-soufre et son procédé de préparation - Google Patents

Engrais à base de silicium-calcium-magnésium-soufre et son procédé de préparation Download PDF

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Publication number
WO2012016394A1
WO2012016394A1 PCT/CN2010/077699 CN2010077699W WO2012016394A1 WO 2012016394 A1 WO2012016394 A1 WO 2012016394A1 CN 2010077699 W CN2010077699 W CN 2010077699W WO 2012016394 A1 WO2012016394 A1 WO 2012016394A1
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WO
WIPO (PCT)
Prior art keywords
slag
acid
fertilizer
silicon
iron
Prior art date
Application number
PCT/CN2010/077699
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English (en)
Chinese (zh)
Inventor
赵慧生
彭印章
王素霞
赵吉锁
李荣田
戴宝东
Original Assignee
遵化市励拓环保科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 遵化市励拓环保科技有限公司 filed Critical 遵化市励拓环保科技有限公司
Publication of WO2012016394A1 publication Critical patent/WO2012016394A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/04—Calcareous fertilisers from blast-furnace slag or other slags containing lime or calcium silicates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B5/00—Thomas phosphate; Other slag phosphates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C05D9/02—Other inorganic fertilisers containing trace elements

Definitions

  • the invention relates to a method for producing slag fertilizer by using metallurgical industrial solid waste and related industrial waste as raw materials, in particular to a silicon calcium magnesium sulphur fertilizer and a preparation process thereof.
  • Yangquan Steel Plant proposed (blast furnace gas ash composite trace element fertilizer) to increase production of vegetables, fruits, corn and rice, and improved the quality of agricultural products.
  • TISCO signed a letter of intent for cooperation with Harsco Group of the United States.
  • the two parties will jointly establish a steel slag tailings treatment and utilization company, and use the world's most advanced treatment technology and management concept to comprehensively utilize steel slag.
  • the main products are cement additives, agricultural fertilizers and fertilizers for golf course lawns.
  • Russian Union SU 15404277 added an additive to the molten steel slag for oxygen blowing. After cooling, the upper surface is enriched in phosphorus, and the lower liquid is enriched in iron oxide, which enriches phosphorus to 21.5 % (P 2 0 5 ).
  • Belgian BE895197 mixes steel slag with natural phosphate, 20-80% slag, phosphate, aluminate, calcium phosphate 10-40% by water treatment to form H 3 P0 4 , so that the sediment reaches 10-30% (P 2 0 5 ).
  • British GB1179246 converter steelmaking by improving the oxygen top blowing, increasing the P content in the slag to obtain alkaline slag fertilizer.
  • ⁇ J01168791 turf soil change agent is to add fertilizer 1-30%, add acid and acid materials 0.5-5%, add mineral humus 1-30%, put the drum and then add polyvinyl acid, The hydroxy cellulose is mixed for 3 minutes and packaged. Summary of the invention
  • the invention aims to provide a silicon-calcium-magnesium-sulfur fertilizer which has wide adaptability to soil, can be used as a raw material of compound fertilizer, has simple production process, low cost, no solid-liquid gas, and a preparation process thereof.
  • a silicon-calcium-magnesium-sulfur fertilizer which is mainly prepared by using a mixture of steel slag and blast furnace slag and iron slag slag as raw materials, and is prepared by acid-base chemical reaction.
  • the chemical composition thereof contains: at least 9% by weight. Si, at least 14% Ca, at least 1.5% Fe, at least 1.5% Mg, at least 0.1% S, at least 0.1% Mn; pH 5.0 to 8.0.
  • the raw material further comprises one or a combination of two or more of iron alloy slag, non-ferrous metal slag and fly ash.
  • the above-mentioned silicon calcium magnesium sulfur fertilizer has a powder form or a granular form, and has a particle size of 0.15 mm in the form of a powder and a particle size of 0.5 mm to 1 mm in the form of particles.
  • Acid treatment Step b
  • the mixture is added with an acid treatment agent for acid-base chemical reaction treatment.
  • the amount of the acid treatment agent is added according to the final pH value of the silicon-calcium-magnesium sulphur fertilizer semi-finished product of 5.0 to 8.0.
  • Acid-base chemical reaction The temperature is controlled between 25 and 60 ° C, and the acid treatment agent comprises sulfuric acid, nitric acid, phosphoric acid and hydrochloric acid;
  • step c The silicon calcium magnesium sulphur fertilizer semi-finished product obtained in step c is processed into a powdery finished product, granules Degree 0.15mm; or processed into a granular finished product, the particle size is 0.5mm - lmm.
  • the acid treatment agent is prepared by mixing in the following proportions: 40 to 60% of sulfuric acid, 20 to 30% of nitric acid, 10 to 15% of phosphoric acid, and 10 to 15% of hydrochloric acid.
  • the outstanding features of the present invention are: mixing fertilizers with various slag materials, and preparing raw materials according to soil characteristics, and the prepared fertilizer contains at least 9% Si and at least 14% Ca. At least 1.5% Fe, at least 1.5% Mg, at least 0.1% S, and at least 0.1% Mn, thereby enabling crops to increase production after application of the silicon calcium magnesium sulfate fertilizer of the present invention; by specific chemical treatment It is converted into soluble salt, which greatly enhances the effective plant nutrients for plant absorption.
  • the acid treatment agent used in the chemical treatment uses a mixture of sulfuric acid, nitric acid, phosphoric acid and hydrochloric acid, so that the prepared fertilizer contains a certain amount of crops needed for growth.
  • the N, P, K and other elements can not only achieve the purpose of increasing crop yield, but also greatly improve the quality of the plant fruit and improve its taste, while also greatly improving the disease resistance and lodging resistance of the plant.
  • the invention makes 100% metallurgical solid waste treatment feasible, and the produced silicon calcium magnesium sulfur fertilizer has wide adaptability to soil, and can be used as raw material of compound fertilizer; the production process is simple, the source of raw materials is sufficient, and the production cost is low. , will not produce solid waste gas, three waste, will not cause secondary environmental pollution.
  • the following table is a statistical table for the yield increase effect of the silicon calcium magnesium sulphur fertilizer crop of the present invention, and the yield increasing effect is obvious.
  • the preparation process of the silicon calcium magnesium sulfur fertilizer includes the steps of raw material preparation, mechanical processing, chemical processing and compound granulation, and the details are as follows:
  • Table 1 shows the four different raw material formulations of silicon calcium magnesium sulfur fertilizer.
  • Table 2 shows the chemical composition and pH value of the four silicon calcium magnesium sulfur fertilizers.
  • the machining process is carried out as follows:
  • Table 3 shows the proportion of acid treatment agent, the ratio of acid treatment agent is satisfied: 40 ⁇ 60% sulfuric acid, 20 ⁇ 30% nitric acid, 10 ⁇ 15% phosphoric acid, 10 ⁇ 15% hydrochloric acid.
  • the pH value of the semi-finished products of silicon calcium magnesium sulphur fertilizer is controlled within the range of 5.0 ⁇ 8.0.
  • the chemical processing is carried out as follows:
  • the granulation of the ingredients is carried out as follows:
  • Powdered product Silicon calcium magnesium sulfur fertilizer (semi-finished product) ⁇ Mill, grinding to 0.15mm particle size ⁇ After passing the inspection ⁇ Metering packaging.
  • Granular finished product Silicon calcium magnesium sulfur fertilizer (semi-finished product) ⁇ Mill, 0.15mm particle size ⁇ granulator (0.5 -1.0mm), after passing the inspection ⁇ metering packaging.
  • the blast furnace and iron slag slag described in Table 1 refers to the mixing of blast furnace slag and iron slag slag in any weight ratio.
  • the composition of the blast furnace slag and the iron slag are similar, they have the same function in the raw materials, and they can be used alone or in combination.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

La présente invention concerne un engrais à base de silicium-calcium-magnésium-soufre et son procédé de préparation. L'engrais se trouve sous la forme d'une poudre ou de granules et comprend : Si > 9, Ca > 14, Mg > 1,5, S > 0,1, Fe > 1,6, et Mn > 0,1 % en poids, et a une valeur de pH de 5,0 à 8,0. Le procédé de préparation comprend (1) le choix de scories d'acier, de scories de haut fourneau, de scories de four de fusion du fer, de scories d'alliage de fer, de scories de métaux non ferreux et de cendres volantes en tant que matières premières, et la détermination des proportions desdites matières premières, (2) le mélange des matières premières, (3) le traitement du mélange avec de l'acide sulfurique, de l'acide nitrique, de l'acide phosphorique et de l'acide chlorhydrique, et (4) la transformation en une forme de poudre ou de granules. Ledit engrais à base de silicium-calcium-magnésium-soufre présente les avantages d'une grande adaptabilité aux sols, d'un effet significatif d'augmentation des rendements de culture, d'un procédé de préparation simple, de matières premières riches et de faibles coûts de production.
PCT/CN2010/077699 2010-08-05 2010-10-13 Engrais à base de silicium-calcium-magnésium-soufre et son procédé de préparation WO2012016394A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201010245260 CN101891521A (zh) 2010-08-05 2010-08-05 硅钙镁硫肥及其制备工艺
CN201010245260.7 2010-08-05

Publications (1)

Publication Number Publication Date
WO2012016394A1 true WO2012016394A1 (fr) 2012-02-09

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CN (1) CN101891521A (fr)
WO (1) WO2012016394A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102391021B (zh) * 2011-08-15 2013-09-18 广州钢铁企业集团有限公司 一种以炼铁高炉水淬渣为原料生产硅钙镁肥料的方法
CN102807457B (zh) * 2012-09-01 2014-06-25 曹志强 一种人参、西洋参用矿质营养素及制备方法
CN105016351B (zh) * 2015-07-06 2017-09-29 钢铁研究总院 一种缓释型硅钾肥的制造方法及系统
CN107006356A (zh) * 2017-05-22 2017-08-04 青海顺泰农牧开发有限公司 一种高炉水渣无土栽培营养基质及其制备方法
CN107556062A (zh) * 2017-07-21 2018-01-09 辽宁东萌肥业科技有限公司 从粉煤灰中淬取水溶性硅制备多元素硅肥的方法
CN108424206B (zh) * 2018-06-04 2021-03-16 国家能源投资集团有限责任公司 粉煤灰酸法提铝残渣制备含硅复合肥的方法和含硅复合肥以及粉煤灰的利用方法
CN113511924B (zh) * 2020-04-09 2022-10-11 国家能源投资集团有限责任公司 液体硅钙肥及其制备方法和应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860409A (en) * 1972-11-29 1975-01-14 Harold W Wilson Process for preparation of acidic fertilizer containing slag
JPS54135153A (en) * 1978-04-12 1979-10-20 Renzou Ochi Granulating method of fertilizer
JPS55127486A (en) * 1979-03-23 1980-10-02 Rasa Kogyo Kk Production of granular soil conditioner
CN1053419A (zh) * 1991-02-06 1991-07-31 白远存 化肥增效剂及其生产工艺
CN1102172A (zh) * 1993-10-28 1995-05-03 太原钢铁公司 多元素复合肥及其制造方法

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CN1151390A (zh) * 1996-10-14 1997-06-11 刁苓荻 硅复合肥及其制备方法
CN1206703A (zh) * 1997-07-24 1999-02-03 柳州钢铁金鹏实业总公司 硅钙镁肥
JP3661748B2 (ja) * 1998-07-21 2005-06-22 電気化学工業株式会社 無機組成物とその製造方法、それを用いた肥料と土壌改質剤
CN1923764A (zh) * 2006-03-15 2007-03-07 岳玉友 枸溶性硅钙镁肥

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860409A (en) * 1972-11-29 1975-01-14 Harold W Wilson Process for preparation of acidic fertilizer containing slag
JPS54135153A (en) * 1978-04-12 1979-10-20 Renzou Ochi Granulating method of fertilizer
JPS55127486A (en) * 1979-03-23 1980-10-02 Rasa Kogyo Kk Production of granular soil conditioner
CN1053419A (zh) * 1991-02-06 1991-07-31 白远存 化肥增效剂及其生产工艺
CN1102172A (zh) * 1993-10-28 1995-05-03 太原钢铁公司 多元素复合肥及其制造方法

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WANG, ZEMIN ET AL.: "Comprehensive Utilization of iron ore slag II", INORGANIC SALT INDUSTRY, no. 11, 1984, pages 30 - 36 *

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